参数资料
型号: TC1232COA
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8
封装: 0.150 INCH, PLASTIC, SOIC-8
文件页数: 15/20页
文件大小: 262K
代理商: TC1232COA
TC1232
DS21370C-page 4
Preliminary
2005 Microchip Technology Inc.
FIGURE 1-2:
Push Button Reset and Watchdog Timer Reset Timing Waveforms.
AC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise noted, TA = TMIN to TMAX; VCC = +4.0V to 5.5V.
Parameters
Sym
Min
Typ
Max
Units
Conditions
PB RST Pulse Width
tPB
20
ms
PB RST Falling Edge Low to
Reset Active
tPBD
14
20
ms
PB RST Rising Edge High to
Reset Inactive
tRST
250
610
1000
ms
ST Pulse Width
tST
20
ns
ST Time-out Period
tTD
62.5
150
250
ms
TD Pin = 0V
250
600
1000
ms
TD Pin = Open
500
1200
2000
ms
TD Pin = VCC
Note 1:
PB RST must be held low for a minimum of 20 ms to ensure a reset.
RST
VIL
tPB
RST
tPBD
VIH
tRST
PB RST
The debounced PB RST input ignores input pulses less
than 1 ms and is designed to recognize pulses of
20 ms or greater.
tST
ST
tTD
RST (when tTD ≤ tTD (min))
“H”
RST
(when tTD(min) ≤ tTD ≤ tTD(max))
(when tTD ≥ tTD(max))
RST
RST (when tTD ≤ tTD(min))
“L”
RST
(when tTD(min) ≤ tTD ≤ tTD(max))
(when tTD ≥ tTD(max))
RST
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